compression wrote:Just a few questionsHow come it was revved so slowly to redline on the dyno? I understand theat normal dyno procedure is to get the rollers going, put it in third, then floor it and wait for redline. And how come it took so long to get into the boost?How come the dyno chart doesnt plot against engine rpm? test time seems pretty useless. It would be much more beneficial to see how the power is delivered realted to engine RPM.
I have ridden in a 760Hp supra, but the boost didnt kick on (single turbo) until late in the rev range, and then it only lasted like a second. Does yours feel like that? Liek a super hard kick in the pants just before redline?
Just trying to do some research, you have some good info, especially for people looking for a bigger turbo.By the way....KICK ***!
It may have seemed like it revved slowly, but I can assure you, the tach is extremely hard to keep an eye on when it's boosting on the street, it's as if the needle wants to jump off of the rpm gauge. It's actually not a 3rd gear pull, these pulls are made in 4th gear. Boost kicks in at about 5500 and is still pulling clean through 8200, that's where I have the rev limit currently set, I'll bump it up when I get more balls. The dyno plot is in time because that's the way the particular tuner wanted it when he was tuning the vehicle, and that's the only chart I had printed off. You'll be able to see an rpm plot once I take this thing to the local dynojet dyno and get some #'s out of it. Yes, the turbo basically slams into boost, it's comparable to a light switch. It holds strong to the rev limit. The car already ran an 11.5 last season with problems at only 18psi...we'll see what the new numbers are within a few weeks.